annotate src/implab/guard.js @ 21:7c22fc01fcec

rewritten ./text/template-compile
author cin
date Thu, 30 Nov 2017 11:01:22 +0300
parents 9c0943c68a90
children
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00779cb63b12 formatting
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1 define([ "./Deferred" ], function(Deferred) {
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2 var toPromise = function(d) {
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3 if (d && d.then)
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4 return d;
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5 var d2 = new Deferred();
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6 d2.resolve(d);
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7 return d2;
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8 };
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9
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10 /**
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11 * функция для асинхронного выполнения метода
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12 *
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13 * @async
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14 * @param{Object} o Объект, который будет использован в качестве
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15 * <code>this</code>, если не указан, будет
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16 * <code>null</code>
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17 * @param{Function|String} m Функция или имя метода, обязательный параметр.
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18 * Если указано имя, тогда параметр <code>o</code>
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19 * также должен быть задан
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20 * @param{Array} args Параметры для вызова метода, не обязательно.
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21 * @returns{dojo/promise}
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22 * @deprecated use <code>safe.async() + when()</code> instead.
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23 */
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24 return function(o, m, args) {
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25 if (arguments.length == 1) {
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26 m = o;
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27 o = null;
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28 } else if (arguments.length == 2 && o instanceof Function &&
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29 m instanceof Array) {
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30 args = m;
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31 m = o;
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32 o = null;
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33 }
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34
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35 try {
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36 if (!(m instanceof Function)) {
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37 if (o)
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38 m = o[m];
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39 else if (arguments.length == 1)
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40 return toPromise(m);
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41 else
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42 throw new Error("The target object must be specified");
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43 }
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44
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45 if (!m)
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46 throw new Error("Method not found");
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47
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48 return toPromise(m.apply(o, args));
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49 } catch (err) {
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50 var d = new Deferred();
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51 d.reject(err);
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52 return d;
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53 }
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54 };
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55 });